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Adastra US90 Compact 90W 100V Slave Amplifier

by Adastra
Original price £145.00 (inc. VAT) - Original price £145.00 (inc. VAT)
Original price £145.00 (inc. VAT)
£145.00 (inc. VAT)
£145.00 (inc. VAT) - £145.00 (inc. VAT)
Current price £145.00 (inc. VAT)
SKU 953.199

The Adastra US90 is a compact 100V line slave amplifier designed to seamlessly integrated into your PA system. 

With a robust 60W output, the US60 is built into a sleek, half-width 1U housing, making it the ideal solution for small to medium PA installations.

Key Features:

  • Compact Design: The US90's half-width 1U housing allows for efficient use of space, fitting easily into standard racks or discreetly under worktops.
  • Flexible Connectivity: Equipped with RCA line input and output, as well as a 100V input on removable screw terminals, the US90 offers versatile connectivity options. This design enables the amplifier to be connected in parallel with existing 100V speakers, effortlessly extending your PA system.
  • Versatile Output: The mono output can be connected to either a 100V line or an 8-ohm speaker load via a separate removable screw terminal connector on the rear panel, providing flexibility for various installation needs.
  • Easy Installation: Supplied with rack-mounting hardware, the US90 can be easily configured to mount a single unit against a wall or under a worktop, ensuring a clean and professional installation.

Ideal for Small to Medium PA Installations:

Designed with versatility and ease of use in mind, the Adastra US90 is perfect for enhancing PA systems in a variety of settings, from small venues and offices to medium-sized conference rooms and public spaces. Its compact form factor, combined with robust performance and flexible connectivity options, makes it an excellent choice for those seeking a reliable and powerful amplification solution.

Upgrade your PA system with the Adastra US90 and experience superior sound quality and seamless integration.


Download the PDF Instruction Manual HERE >

Adastra US90 Slave Amplifier Specifications

  • Output power : rms: 90W
  • Dimensions: 330 x 210 x 44mm
  • Weight: 2.40kg
  • Power supply: 170-264Vac, 50Hz (IEC)
  • Amplifier : construction: Class D + transformer output
  • Inputs: Line (RCA), 100V (Euroblock +/-)
  • Line output: 2 x RCA (mono)
  • Speaker output: Euroblock terminals: 100V / 8 Ohms / Com
  • Mute: 24V relay contacts
  • THD: <0.4% @ 1kHz
  • Input impedance: 1k Ohms
  • Input sensitivity: -10dB (line)
  • SNR: 80dB
  • Frequency response: 100Hz - 18kHz
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